const crypto = require('crypto'); // 引入crypto模块
function md5(str) {
    return crypto.createHash('md5').update(str).digest('hex');
  }
function formatDate(date_) {
  const date = new Date(date_);
  const year = date.getFullYear();
  const month = (date.getMonth() + 1).toString().padStart(2, '0');
  const day = date.getDate().toString().padStart(2, '0');
  const hours = date.getHours().toString().padStart(2, '0');
  const minutes = date.getMinutes().toString().padStart(2, '0');
  const seconds = date.getSeconds().toString().padStart(2, '0');
  
  return `${year}/${month}/${day} ${hours}:${minutes}:${seconds}`;
}  
module.exports = {
    md5,
    formatDate
}
